MineRealm is a public SMP server that has been online since 2010 and tons of players have joined over the years. It feels like a long term place with a real community and people who actually stick around.
The server is semi vanilla and stays focused on legit survival. There is no pay to win and no item spawning so what you get is what you earn.
The world is smaller and it expands over time with new land generating in the latest Minecraft version. It uses a classic plot system and grief protection with CoreProtect so your builds can stay safe.
There are also a few custom plugin features meant to help community stuff and long term survival. There are no world resets so your builds are meant to stay.
